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Preparation method of graphite-bi-selenylation niobium nanocomposite

A nanocomposite material, niobium diselenide technology, applied in the direction of conductive materials, conductive materials, base materials, etc., can solve the problems that are difficult to meet the market demand, have many problems, affect production efficiency, etc., and achieve a wide range of industrial applications, The effect of small size and excellent tribological performance

Inactive Publication Date: 2012-10-03
无锡润鹏复合新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Both of the above two patents have prepared NbSe through a series of methods 2 Self-lubricating composite materials, but the process of the two methods is still relatively complicated. Operators need to go through a long period of training before they can work on the job. There are also many problems during the operation process, which seriously affects the production efficiency and is difficult to adapt to the needs of the market.

Method used

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  • Preparation method of graphite-bi-selenylation niobium nanocomposite
  • Preparation method of graphite-bi-selenylation niobium nanocomposite
  • Preparation method of graphite-bi-selenylation niobium nanocomposite

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Embodiment 1

[0030] Add 0.60736g of niobium powder, 1.39264g of selenium powder, and 0.45552g of graphite powder into a beaker with 50ml of absolute ethanol, stir magnetically for 2 hours, mix well, let stand, pour out the supernatant, and dry the remaining anhydrous at 75°C Ethanol, put the evenly mixed powder into a self-made reaction kettle, put it into a tubular reaction furnace, raise the temperature to 650°C at a rate of 10°C / min, keep it warm for 2h, and take out the sample after cooling to room temperature with the furnace, and the obtained powder is Graphite-Niobium Diselenide Nanocomposites.

Embodiment 2

[0032] Add 0.60736g of niobium powder, 1.39264g of selenium powder, and 0.45552g of graphite powder into a beaker with 50ml of absolute ethanol, stir magnetically for 2 hours, mix well, let stand, pour out the supernatant, and dry the remaining anhydrous at 75°C Ethanol, put the evenly mixed powder into a self-made reaction kettle, put it into a tubular reaction furnace, raise the temperature to 750°C at a rate of 10°C / min, keep it warm for 2 hours, and take out the sample after cooling to room temperature with the furnace, and the obtained powder is Graphite-Niobium Diselenide Nanocomposites.

Embodiment 3

[0034] Add 0.60736g of niobium powder, 1.39264g of selenium powder, and 0.45552g of graphite powder into a beaker with 50ml of absolute ethanol, stir magnetically for 2 hours, mix well, let stand, pour out the supernatant, and dry the remaining anhydrous at 75°C Ethanol, put the evenly mixed powder into a self-made reaction kettle, put it into a tubular reaction furnace, raise the temperature to 850°C at a rate of 10°C / min, keep it warm for 2 hours, and take out the sample after cooling to room temperature with the furnace, and the obtained powder is Graphite-Niobium Diselenide Nanocomposites.

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Abstract

The invention relates to a preparation method of a graphite-bi-selenylation niobium nanocomposite. The preparation method enables niobium powder, selenium powder and graphite powder to serve as raw materials, conducts solid-phase reaction at certain temperature conditions and synthetizes sheet-shaped particles formed by a graphite-selenylation niobium nanocomposite. The preparation method is simple in process, high in productivity, environmental friendly, free of pollution and capable of achieving large-scale industrial preparation. Simultaneously, nano materials are small in size and have good physical chemistry effects so that the nano materials can serve as an excellent annexing agent of an electric contact material.

Description

technical field [0001] The invention relates to a synthesis method of a nanocomposite, in particular to a preparation method of graphite-niobium diselenide, which belongs to the technical field of inorganic composite materials. Background technique [0002] As a traditional solid lubricating material, graphite also has the advantages of good chemical inertness, high temperature resistance, corrosion resistance, good thermal conductivity and electrical conductivity, and is light in weight and low in price. It is used in aluminum, silver, copper, nickel, SiC, poly Vinyl fluoride (PTFE), polyimide (PI), polyamide (PA), epoxy resin (EP) and other wear-resistant metals, ceramics, and polymer materials have been widely used. [0003] Graphite powder is a dark gray metallic luster opaque fine scale solid. Graphite is very soft, has a slippery feel, and has excellent electrical conductivity. It is a negative electrode material for batteries. The technological process of graphite p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M103/00H01B1/00
Inventor 李长生唐华孙建荣朱炳莹范有志钱周
Owner 无锡润鹏复合新材料有限公司
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